Files
react-native/Libraries/Core/setUpPerformance.js
T
Andres Suarez 8bd3edec88 Update copyright headers from Facebook to Meta
Reviewed By: aaronabramov

Differential Revision: D33367752

fbshipit-source-id: 4ce94d184485e5ee0a62cf67ad2d3ba16e285c8f
2021-12-30 15:11:21 -08:00

27 lines
614 B
JavaScript

/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict
* @format
*/
'use strict';
if (!global.performance) {
global.performance = {};
}
/**
* Returns a double, measured in milliseconds.
* https://developer.mozilla.org/en-US/docs/Web/API/Performance/now
*/
if (typeof global.performance.now !== 'function') {
global.performance.now = function () {
const performanceNow = global.nativePerformanceNow || Date.now;
return performanceNow();
};
}